Trigonometric Functions and Angles

This video tutorial explains how to find angle measurements inside a right triangle using trigonometric functions such as sine, cosine, and tangent. It covers the identification of opposite, adjacent, and hypotenuse sides and demonstrates how to use a calculator to find angles using inverse trigonometric functions.

What is the main focus of this lesson?

• Graphing linear equations

• Solving quadratic equations

• Finding angle measurements in right triangles

• Finding side lengths in triangles

Which trigonometric function is used when you have the opposite and hypotenuse sides?

• Tangent

• Sine

• Cosine

• Secant

What is the formula for the sine of an angle?

• Adjacent over Hypotenuse

• Opposite over Hypotenuse

• Hypotenuse over Opposite

• Opposite over Adjacent

If you have the adjacent and hypotenuse sides, which function should you use?

• Cotangent

• Tangent

• Sine

• Cosine

What is the inverse function used to find angles with sine?

• Sine inverse

• Cosine

• Sine

• Tangent

In the example with sides 10 and 14, which function is used?

• Secant

• Tangent

• Sine

• Cosine

What angle is calculated using sine inverse with sides 10 and 14?

• 30 degrees

• 45.58 degrees

• 60 degrees

• 90 degrees

Which function is used when you have opposite and adjacent sides?

• Sine

• Cosecant

• Tangent

• Cosine

In the example with sides 14 and 11, which function is used?

• Cosine

• Tangent

• Sine

• Secant

What angle is calculated using tangent inverse with sides 14 and 11?

• 90 degrees

• 30 degrees

• 51.84 degrees

• 60 degrees